No fiction winner for Pulitzer this year!

Wow, the Pulitzer prizes were announced today and there was no fiction award!  Shocking, huh?  Swamplandia, by Karen Russell (I've really got to read that soon!), something I've never heard of called Train Dreams by Denis Johnson, and The Pale King (by Foster Wallace, which I have no intention of reading)  were short-listed.  I wonder what gives?  Apparently this hasn't happened since nineteen-seventy-something.